I feel that the jet trails in the second and third images in the post compliment the movement in the subject after he had thrown the soil. The subjects weight has been transferred all the way over to the left side of his body and he is standing on one leg. The trail seems to follow the angle at which he is standing and adds atmosphere to the image as well as framing the subject and the activity that is going on in the bottom right corner. There is no detail in the top left corner and i feel the jet trail draws the viewers eye away from this area where nothing is happening and brings the eye towards the area of interest.